He wants to photograph his wife naked so that he can look at the pictures when he is away ?

The activity said in the question is a standout amongst the most loathsome of activities. It is haraam all by itself and in view of what it prompts to.

With respect to it being haraam all by itself: a lady on a basic level is altogether 'awrah and it is not passable to take her photo in any case, regardless of the possibility that nothing shows up except for her face and hands, so what about if what shows up is more than that. Imagine a scenario where the photo demonstrates her most private 'awrah. Without a doubt this is more loathsome and wicked and prompts to more noteworthy discipline.  Husband and wife bath together.